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Finding the Fourth Proportional to 554,523.04, 765,437.88 and 328,168

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Solution

The fourth proportional to 554,523.04, 765,437.88 and 328,168 is: 452,987.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,523.04 : 765,437.88 = 328,168 : x
  2. Step 2: Convert to fraction form
    554,523.04/765,437.88 = 328,168/x
  3. Step 3: Cross multiply
    554,523.04x = 765,437.88 × 328,168
  4. Step 4: Simplify right side
    554,523.04x = 251,192,218,203.84
  5. Step 5: Solve for x
    x = 251,192,218,203.84/554,523.04
  6. Step 6: Final answer
    x = 452,987.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.